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  • order by newid() sql随机查询

    SQL Server:

    Select TOP N * From TABLE Order By NewID()   
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    Select TOP N * From TABLE Order By NewID()

    Select TOP N * From TABLE Order By NewID()
    NewID()函数将创建一个 uniqueidentifier 类型的唯一值。上面的语句实现效果是从Table中随机读取N条记录。

    Access:

    Select TOP N * From TABLE Order By Rnd(ID)    
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    Select TOP N * From TABLE Order By Rnd(ID)  

    Select TOP N * From TABLE Order By Rnd(ID) 
    Rnd(ID) 其中的ID是自动编号字段,可以利用其他任何数值来完成,比如用姓名字段(UserName)

    Select TOP N * From TABLE Order BY Rnd(Len(UserName))   
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    Select TOP N * From TABLE Order BY Rnd(Len(UserName))

    Select TOP N * From TABLE Order BY Rnd(Len(UserName))

    MySql:

    Select * From TABLE Order By Rand() Limit 10   
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    Select * From TABLE Order By Rand() Limit 10

    Select * From TABLE Order By Rand() Limit 10


    postgreSQL:

    select * from glxt022 order by random() limit 5   
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    select * from glxt022 order by random() limit 5

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  • 原文地址:https://www.cnblogs.com/ymecho/p/3027756.html
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